Composite electric system.



A. D. T. LIBBY.

COMPOSITE ELECTRIC SYSTEM.

APPLICATION FILED Aue.28. 1909.

Pxtented Apr. 27, 1915.

2 SHEETS-SHEET I.

fills ATTORNEY A. D. T. LIBBY.

COMPOSITE ELECTRIC SYSTEM.

APPLICATION FILED AUG.2B. I909.

LW V, mu, Patented Apr. 27, 1915.

' 2 SHEETS-SHEET 2.

MThsses, mgefl ALBION 1). T. LIBBY, or ELYRIA, oHIo, ASSiG-Nbit, BYYMESNE ASSIGNMENTS, TO THE emaronn ,MANUFAGTURING COMPANY, OF ELYRIA, OHIO, A CORPORATION or OHIO.

msmso.

,To all whom it may concern Be it known that I, Annex D. T. L ner, a bitizen of the United States, residing at Elyria, in the county of Lorain and State of Ohio, have invented certain new and useful Improvements in Composite Electric Systems; and I do hereby declare the following to be. a full, clear, and exact description of the iirv'entionfsuch as will enable thers skilled in. the art'to which it appertainsto make'and use the same.

My invention relates more particularly to combined telephone, police, and fire systems. "I conteniplate more particularly a system .in which I piovidc an arrangement for sighiding the various stations alongthe line by means of some kind oi attractive signals, located at the sub-stations. I use on the system which I liereindisclose, a plurality of lamps which may be operated ,to burn cone signal sent in, and the date thereof. I provide}- a signal at special station which,.may.-be' the barn or the patrolmans station, which signal is not operated by the ordinary police report signaling apparatus but whichis operated by circuits controlled through a special means at the sub-station.

Third. I provide a line signal relay at the central station and a line relay which acts to .automatically cut ofi the line signal relay At the sub-station I provide a signal which may be in the police box and which is 2111- toinatically operated then the glass covering the key receptacle, is broken.

I also provide a system'in which I'combine means for sending a signal from the sub-station to the main station and recording the same there, means for signaling the main station independent thereof, means 'for telephoning between these stations fand means atthe substations under control of the main station attendant for signalin Ian itinerant person in the neighborhood'- 0 the sub-static While I have described my system as be Specification of Letters Patent.

COMPOSITE nLEorN-ic SYSTEM.

Patented Apr. 27, 1915.

Application filed August 28, 1909. I Serial No. 515,044.

ing more particularly intended for a police I system, I contemplated its use for other'aiid similar purposes where itinerant personsor vWhere workmen or others who are ordinarily Y in the vicinity of the boxes are to be signaled.

My invention will be best understood by ,reference to the following description when taken in connection with the accompanying illustration showing one specific embed} /ment"thereof, while its scope will belmore particularly pointed 'out in the appended claims.

apparatus constituting the system; i'Figlirp Figuevlrea ram of a, Ola-1a ad is a modification of the signalsendingap paratus at" the central station. 3 is a i perspective or the sub-station Heir {showing the doors open.' Fig, 4 is a horizontal cross -',--section of the box showing both'do'ors open.

Fig. 5 is a vertical'cross section showingthe doors closed. 1

Referring tothe' drawings and to the embodimentof my invention there shown, I have illustrated inrFig'. l acentra-l office at I. At II ,I have illustrated merely diagrammaticallyla;sub-station. At III I have llustrated in detail the circuits-and app'a ratus of a sub-stat1on; and at IV, the fire signal receiving station. At V I SllOW a special station; such as, the patrol wagon I barn, or stable.

may combine the'sebatteries when I find it The batteries are illustrated? at B, B B BflfBf, B B, B'Kand B I as illustrated. lllfh'ebatteries have been illus I trated thus for thesake of convenience in is shown at A. This source is controlled by electromagnets S and S The line signal the diagram. A source of signaling current when a police report signal is being sent 1n.

is shown at S; a buzzer, at F; and the line.

relay, at S. K is a si al at the central,

' station which indicates't e police signalsto' the central operator; S. is a relay controlioi" ling the police signalrecording mech'a ism; M. At the termination of the revolutiiiii of pleted, and a record of the time of the motor M, a circuit through the magnet S is omacting magnet S controls the signal relays S and S, S being placed atthespecial station V. The magnet S controls 'thesignal P at the central operators desk central operators telephone set 'is'show X. At the sub-station show a signal conand condenser C bridged The signal lamp is shown operates the fire signal recording apparatus- E.

Having thus described the more prominent parts of the apparatus and circuits, I will now describe the: details in connection with the operation.

sire to call the patrolman to the sub-station apparatus, he closesthe switch 5 which completes the c'ireuit fromground G' through the switch 5, conductor 6, the relay S ba't tery. B, to ground G The relays; pulls uparmatures 7, 8 and 9which break the connectionat 710, 911, and-close the con-' tacts 712, 813, and3-9'14. This completes first, a lockin circuit of the relay S, as follows: ground a, switch l5', conductor 16, armature 17, and eoiiperatin conductor 19, switch 13-8,.S 7 to ground G A circuit through the generator Ads completed as follows: A.Sf20.127 lline limb 21, to the sub-stations, at the various sub-stations through thebridges 22, including the condensers C and thesignal controlling relays S? to the other line limb 239 14- back to, the generator-.A. This operates the relays S which pulls up the armatures 24, engaging the contacts 25 which completes a circuit through the lamps L. 1 The lamps L arebridged onthe lighting mains 26' and 27. There'lnys Sand 5 are contact 18,

alternating current ;relays. As long as the circuit is through the: relay S the energy in the circuit isins'ufiicient to' operate the relay S. :As soonas anyof the-subscribers on the system answers the signal by removing the receiver It, from thehook switch,the low resistance talking bridge is completed around thef bridge 22 through, the transmitter. T to the receiver R. .The current flowing through this bridge is suificient to operate thei'elay' S. which pulls up its armature 17, interrupting the locking circuit. of the relay Sf hich is immediately"deerft'rgized, perarmatures 7, 8, and 9 to fallback,

ing the. line circuit. '.Both 1the; relays S S? are deenergized, allowing the signaling' system "to return to normal condition. The 's'w1tch'15 is provided in'. order that I may interrupt the locking circuit manually if there is no response to the signals-at the substation. When the 'armatures 'zand 9 fall back, completing the line limbs,a circuit the substation transmitter, at T; the

l The operation of my'systeinis as follows: Should 'thecentral operator deneeting the generator A, and completis closed through the line signal S as folk lows: battery B 2'526armature 27.0! relay Scontact 2829303132-33 11- 9- 23-sub-station bridge let-through T-l t"-2171035T 36- 37-38-.the line signal S, back to Battery 13. This energ1z es signal S which throws the drop 40 completing a circuit through the buzzer as follows: 40-41E 42the closed switch 4344-25--battery B, back to this drop 10. The buzzenF is operated, indicating to the centraloperator that the sub-stat tion has responded, -or, as the case maybe that the sub-station is calling in. He imme diately operates the'switch 50, disconnecting. H

the signal receiving apparatus by breaking the contacts 3132 and 36-37, and closing a circuit through the central talking set by closing the contacts 336 and 4-32. This completes the talking circuit between the central and sub-stations as follows: 'T24 7 1D-353631-5lRT-Ibacl L T. Current is supplied to this circuit'from the battery B through the induction coils 52 and 53. -These coils serve to choke out -the variations in the battery current.

a The operation of'the police signal sending and recording means is as follows: The sub-station operator pulls down the lever 54 of the signal sending apparatus D which opens and closes the following circuit which according to the code-signal of the articular sub-station apparatus. Relay pulls up its armatures 27; and 61, interrupting the connection of the line signal S to the line,

and preventing its operation during the sending of the impulses. The armature 61 engages contact 62, completing a circuit through thebell K-and the relay S, as follows: batter B-636 4S65-K-the .switch 66-6 626160eback to battery B. This energizes the bell K and the relay S. v S pulls up its armatrr 70 permitting the operation of the sprin motor and signal recording apparatusdii The signal isv then recorded upon the tape N, and at the end of the rotation of the motor M, the lug 71 engages a spring 72 closing the switch 7273. This completes a circuit through the magnet S as follows: S--7475 -batvtery B*63 -64-72 73-78v-back to magnet S. The magnet S pulls down its armatures 79 and 80, stamping upon the ribbon the time registered by the motor clock ing apparatus is not 0 through the circuit of B When the relay 5: is energized, it closes a switch 81--82 which completes a circuit through the relay 5 as follows: S -83- 75-battery B*-638ir81-8285-back to relay S. A condenser G is bridged across the contactsv 81-82. The energizati'on of the relay S by the code signal sendof sufficient duration to close the contacts 81 and 82 long enough to energize the slow acting relay S suiiicientl y for it to pull up its armature. Should the substation operator desire to call for a pa trol wagon, the "button' 91 is pressed down to close the swit :h 90-92, and held there for a short space of time. This completes the circuit from ground G 90-9258--23- 9113332'31'30line relay S -60- B*-to ground at GH The relay 8'' is energized, closing a'circuit, as above described, through relay s which closes-a circuit previously describedgthrough relay S The key 91 is held down long enough to energize the slow acting relay 5'" which pulls up the armature )4 to engage the contact 95, completin-g a circuit through the signal relays S and S as follows: ground at (l"-li- 75-839 l9516-and through the relay S" to ground G and .Y'" to ground G in parallel. The drops of these two relays are and the stamp Z.

- thrown, and a circuit completed through the signal I. The drop V is located at the wagon barn, and its operation indicates that a wagon is desired. This enables the driver to prepare to depart in advance of the order directly from the chief patrolman located at the central office. At S' -1 illustrate the line relay of a sec- 0nd line (not'shown but similar to the line 21-423). This relay is connected by 60' to the battery B and by 30' to its line. It controls anarn'iature (31 adapted to engage the contact 02 which is connected through the switch on to the signal bell K, and a second armature 27 which normally ongages the con tact 28 connected to the lead 30. When a line relay is energized, the interruption of the connection. at 27-28 serves to' prevent current from passing from Bf through the contacts 0(J (30-S""-29 2 8'27'-2627--2829 to 30 and ground through I), energizing the relay S and giving a false signal on that lihe.

The lirealarm system operates as follows: use the same signal sending apparatus at the substation, but a difi'erentsigna'l receiving apparatus which is here shown at the station IV, but may be located at the same statidn as the other central station apparatus. In thc'lire alarm system, the apparatus D is normally shunted through the shunt 100, 101, 102 and 103. A key to the box is placed in a receptacle 105 which is inclosed by a glass or other suitable plate 104. The glass is broken, and immediately follows:

upon the breaking thereof, the lug 108is relieved. The normally closed switch 10l 102 is interrupted, breaking the shunt of the apparatus D and closing a switch 106107. This switch closes a circuit through the lamp L as follows: L-110100107-111-27 to the source of lighting current 26, back to the lamp L. The fire alarm signal receiving apparatus at the station I\ is now operated over the following circuit: from ground at G ll2-l 13-114115116-ll7 relay S battery Bto ground at G. mature 120 alternately engages and disengagcs contact 121, completing and breaking a circuit through the relay 8. This circuit ground at G-battery B 12O-121-S*-(} The signal is recorded on the tape of the apparatus I].

In the modified form in Fig. 2 I have dispenscd with the feature whereby the substation signaling current is automatically disconnected. I show a key switch 125 which controls the contacts 126-l27, and, when operated, completes abridge on the line through the battery I3 This serves to operate the signal controlling means at the substations.

In Figs. 3, 4, and 5 I show the box at the police station. At 105 isshown a receptacle for the key to the box which is inclosed by a glass plate and which may be reached by breaking the glass. The switch button 108 is also shown on this box, and is normally prevented from operation by engaging the When the glass is broken, this operating to 150 within the compartment where the contacts completed thereby are located. The lever 51 is also pivoted to the rear of the door and projects therethrough, being accessible from the exterior of the inner compartment. The inner door 150 is pivoted intermediate its ends at 151 and 152. By

pivoting this door intermediate its ends, I

am enabled to swing it out so as to be able to approach the apparatus upon the rear thereof without removing any- 'of the apparatus which projects through the front thereof, and without damaging or interfering with the same. This will be readily un'- derstood from Fig. 4 of the drawing which shows the inner door open. The outer door 153 is hinged to the outer edge of the box and serves to close the exterior compartment as well as the box itself. On the interior of the exterior door at the top and along both sides I show a ridge 154 which cooperates with a gutter tom of thedo'orI show a lipi 156 which co operates with a part 157 on the box. This arrangement isprovidedi to make the box water-proof. Any Water running down over 'the ridged-6O will be caught by the gutter and fcari'i'ed down and discharged at the bottom of thebox. Water I'UJIDlPgdOWII thesurfaceof the door willgbe carried clear of the box by the lip 156. CUpon the back these the light rays from the lamp pass to of the box l show a lamp si al L; In the sides of the" box recesses are cut and lenses 162, 163 andf164 inserted therein. Through the exterior of the box. In the inner door 150 there is'provided a recess 161 which co-- operates with the recess of the lens 164 inthe'outer door 153 so that the light rays pass straight through the two doors to the exterior thereof, or the lamp itself may project from the inner compartment through -the recess161.

While I haveshoivn this particular arrangement of circuitsiand apparatus, it will be obvious to those skilled iii the art, that bination of a telephone circuit, affire alarm circuit,. a -motor operated fsignal sending device in-said circuit, acentral. station, substations in said telephone circuit, 'a'lamp signal at each substation and means at each substation adapted to cause the actuation of the ,signal at said substation and-to control said fire alarm circuit at said substation. 2. In a composite electric system, the

combination of a telephone circuit, a fire alarm circuit, a central-station, substations in saidtelephone 'circuit a visiblesignai at each substation'and means'at each substa-' tion, controlling the'signal at said substation and, the fire 'alarm c'ircuit connectedto said substation'whejreby said signal and said fire alarm circuit may be actuated simultane ously, v I

3."In a compos te electric system, the

; combinationaof a telephone circuit, a fire alarm'circuit, a central and substations, in

said telephone circuit, lamps at said substations, a c rcu t forgsaidilamps and means at each} substation controlling the lamp thereat and the fire alarm circuit connected to suchfs'ubstation, saidmeiansbeing com};

mon to said 'larnp and said fire alarm "circuit.

--4. In a composite electric system, a telephone'pircuit, a; firefala'rm circuit, a central -...and substations in said circuit,,motor operated fire alarm signal g apparatus at'each substation, a lamp signal at each close circuit through said controllin resubstation switching nieans common to said signal sending appara s and saidsi nal at said substation con olling. both'the signal sending apparatus and the signal at said substation, U a

5. In a composite electric system, the com-.

bination of'apolice and fire system, a cen'; tral and substations in said system, normally closed police boxes at said sub-stations, opening means for said boxes, fan inclosure for the opening means, signals in said boxes signalsending apparatus in said boxes, an means'operated automatically by the breaks ing of the incl'osure, cont ;olling' both the v signals and the signal sending apparatus.

6.- In a composite electric system, the com bination of a police and fire system, a'c'en tral, and sub-stations in said system, normally locked police boxes fat said substations,'unlocking means for said boxes, an inclosure for said unlocking means, a glass front for saidinclosure, signals at said sub-.-

stations, signal sending apparatus at said sub-stations, a switch act ng automatically} when the glass front is broken to actuate said signal and to control: said'signal sendin ap aratus. Id a composite electric system, the cons.

bination of a central station, slgnal .recorda ing means at said central station, asig'naladjacent to said central station, a slow act-- a ing relaycontrolling saidsignal, sub-stations onsaid s stem current 1m ulse send produce .impulsesvto operate the signal recording means at the central station, a circuit for said slow acting relay, a relay controllingsaidslow acting relay circuit, said slow acting relay being irrcsponsive to said impulses andmeans at the sub-stations to lay toactuatesaid slow acting relaiy w ere-' .by saIid adjacent signal is operate 8,

n a composite electric system, the, combination of a central station, signal record- "signal, a circuit for said .slow acting relay,

a relay controlling said slow acting relay ing means at the sub-stations adapted to 'ing; means at said centralstation, a signal adjacent to said central station, conductors connectingsaid signal and said central sta- "tion, a slow acting relay controlling said circuit, and said slgnalorecording means, a

plurality of sub-stations, conductors con: nectingsaid sub-stations, and said main sta- "tion, current impulse sending meanatthe sub-stations adapted to produce impulses .to operate" the signal recordin means at the central s'tafgon, sa-idslow acting relay ,being irrespo'nsi torsaid impu1ses,;and mea;ns at the sub-stations to closea circuihth ii g actuate'thesaine said slow acting relay to to operate isaid adjacent signalsi 9. In a composite electric system, afcdm-v bined telephone and police system, a central i station anda sub-station on'said system, a

maniac a signal adjacent to said" central station,

sig-' nal sending, means at, said sub-station,

' nal recordingg meansat-fsaid central station irresponsive to,

adapted tojbe; operatedlfh'yfimpulses off cur rent originated by said signal sending means,- a.slow actin g'relayin said system in circuit with said-usignalsending means, but the impulses originated thereby, and T means "at" the sub-station for LOB-Iii" cordin actmg relay irresponsive ,station on said i central station, trolling Said si closing a circuit nermally opeu-ati said means whereby said slow acting relay is ac- .circuit' throughsa-id adtuated to closer]. jacentsignal' l ilomposite electric system, the

combination nal adjacent to said central station, a slow acting. relay controlling said signal, a substation on said system, current impulse sending means atthe sub-station adapted to pro duce impulses to operate the signal recording means at the central station, said slow Y to said impulses, and means'at the sub-station to close a circuit normally open at said means .through said slow acting relay to actuate the same to operate said ad acent signal. 11; In a composite electric system, the combination of a combined police and telephone system, a central stationand a subsystem, a line signal at said means in said system conal, police signal sending means at said su station and means actuated when the police signal sending means is operated to positively interrupt the connection of said line signal controlling means With the system. I I

12. In a composite electric system, the combination of a central station and a substation on said said central station, signaling apparatus at each of said stations, a relay at the central station controlling said adjacent station signal a paratus, circuit making and breaking impu se sending apparatus at the sub-station ada tedto actuate said si aling apparatus att e central station, saif i'elay' being irresponsive to the impulses of said impulse send ng apparatus, and a normally open switch at said sub-station for o erating said relay whereby the adjacent station signaling station on mas a shunt 1n sa dfire circuit around said signal att sendmgj means '-rendering 'saild ,fire signal apparatus is actuated.

13. In a composite electric system, the combination of a telephone, a fire and :avpolice system, policefsignal receiving said signal receiving means,

of a central station,'signal re-' Substation and Said fire g means at'said central station, a sigceiving means normally combination of substation system, a station adjacent to recording means normally irresponsive thereto.

combination of a police, .a fire, and a tide phone system, police signal receiving means in said system, a sub-station in said'system, circuit making means at said sub-station adapted to operate saidipolice' signal receiving means, a -fire station in said system remote from said central station, fire signal receiving means" at said fire station, a circuit connecting said substation and said means, and a second circuit connecting sai signal receivin means, a shunt in circuit of" said si a sending means rendering said fire signa relrresponsive thereto, and means for interrupting said shunt.

15. 'In' a composite electric system, the a police, aftelephone and a fire system, police signal receiving means, a in said system, signal receiving means, a circuit connecting said substation and said policesignal receivin means and a second circuit connecting said substation and said fire signal receiving means, common means at said station for operating the signal receiving means, means at said substation rendering the fire signal receiving means normally irresponsive to the sub-station signal operating means, and a device at the sub-station Within an inclosure, said device adapted to be automatically 0 erated when said inclosure is broken to ren er said fire' signal receiving means responsive to said suo-station signal operating means.

16. In a composite electric system, the combination of a telephone, a fire and a police system, police signal receiving means, fire signal receiving means, a substation on said system, a oircuit 'connecting'said substation and said police receiving means and a second circuit connecting said substation and said fire signal receiving means, signal sending means common to said si a1 receiving means at said sub-station, circuits connecting said signal sending and said signal receiving means, a shunt 1n the circuit of the fire signal receiving means around said signal send' normally inoperative thereto, a device at the sub-station Within an inclosure controlling said shunt and adapted on interruption of the inclosure to automatically open said shunt to render the fire signal receiving means responsive to the signal sending means. 17. In a composite electric system, the combination in a police and fire system, a central and sub-stations in said system, normally closed police boxes at said substations, fastening means for said boxes, means for controlling said fastening means, an inclosure for the controlling means, signals in and breaking signal sending police signal receiving mg means rendering the same in said boxes, said boxes, call by the trol ing both signals and the signal send- In apparatus.

11 testimony whereof I afiix in presence of two witnesses.

( ALBION D. T. LIBBY.

Witnesses:

W. P. MAwsoN, CARRIE A. SEVERCOAL.

signal sending apparatus in and means operated automatimy signature breaking of the inelosure con-l 

